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Rahul R

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Everything posted by Rahul R

  1. HyperWorks Student edition support import / export of Radioss and OptiStruct solver only. https://altairuniversity.com/altair-student-edition-limitations/
  2. Analysis page: Pressure (After entering pressure panel, just press H on keyboard and it should take you to the pressures panel help)
  3. You could refer to below video where presenter talk about simple beam with mathematical approach.(Topic covered from 14:00-20:00) Please refer free Optimization eBook /online tutorials and example guide for topology optimization. https://altairuniversity.com/free-ebooks/free-ebook-practical-aspects-of-structural-optimization-a-study-guide/
  4. For runtime improvements for multi-model optimization, you could use multilevel DDM. This is available for OptiStruct 2017.2.3 version or higher. Refer online help for more details. New – mmo/ddm: np = 16, nt=2
  5. Please apply load as equation. Refer online hep for details.
  6. Currently this is not supported.With OptiSruct version 2019.1, we added support for Viscoelastic material & creep material. We will let you know once this feature is available.
  7. Do you get the H3d file after analysis? Note: OptiStruct is solver so you wont get separate user interface .You can submit run from Hypermesh-Optistruct user profile or Hyperworks sover run manager.
  8. Please try to overcome warning 3400.Celas is zero dimensional element and has single degree of freedom at each end.
  9. If you are using HyperWorks student edition then this is the limitation: Solvers cannot be started from a command line (only from within the respective panel in the Graphical User Interface) https://altairuniversity.com/altair-student-edition-limitations/
  10. Please look at attached model.Note that FATLOAD for transient won’t reference TABFAT because the time history is directly available from the analysis. Trans_fatigue.fem
  11. I assume you are running structural analysis using OptiStruct.Under Analysis page:Control cards:GLOBAL OUTPUT REQUEST:STRESS:LOCATION:CORNER
  12. This will get active when you request stress results for corner data while defining output.
  13. Rawgap is the physical gap between two midsurface.You could refer to below TTF for print contact info prior to analysis. Did you define any CLEARANCE? Which version OptiStruct Solver you are running? https://insider.altairhyperworks.com/wp-content/uploads/2018/10/TT-1329-OptiStruct-Print-contact-info-prior-to-analysis.pdf
  14. When HyperStudy is running in EDU mode it is expected to append the altdoctag to solver input decks for OS, RAD and MS when the a Parameterized Model is generating the input file . In the v2019.0 release this does not happen all the time. The root cause has been identified. We will let you know once the fix is available in upcoming version of Student Edition.
  15. We are working on your query. We will get back to you.
  16. You could use DRESP3 . When a desired response is not available from OptiStruct, either directly or via equations, it may be calculated through external user-supplied functions implemented in shared/dynamic libraries or external files as External Responses. Please refer attached document for same. DRESP3.zip
  17. Please refer to the best practices for random response analysis from Resource Library. Random Vibration Best Practices.pdf
  18. Composite laminate definition with solid elements have two main categories although the definition is using solid elements for both the types: 1. Solid Layered Composites 2. Solid Shell Composites (Continuum shell composites) The first type is using regular first order or second solid elements. While using first one, where bending is predominant, solid elements tend to be very stiff. Several layers of solid elements through the thickness are typically required to correctly simulate a structural member in bending. To overcome the above limitation, assumed strain functions are added to the elements to make them behave more like shell elements when loaded in bending. This integration scheme is called Continuum shells. This is what we have the second type. As of now we support only this scheme (Continuum shells). The first type is not yet supported. PFA material for same. Indeed, Multiscale designer has wide range of nonlinear composite materials .The user material MATUSR has been added in HyperMesh 2019.1.1 (full version).Multiscale designer will be a part of Student Edition in upcoming version. Continuum_Shells.zip
  19. Are you looking for Stress-NORM aggregation in topology optimization? You could refer to OptiStruct online help for more detail. We have plenty of tutorial and examples available for optimization.
  20. You could refer to HyperForm (Manufacturing solution Interface)tutorials. HF-5000: Using Result Mapper in HyperCrash In this tutorial, you will learn the procedure for mapping forming results onto structural models using the HyperWorks Results Mapper. HF-6000: Die Structure Optimization
  21. I also tested Radioss + HyperStudy coupling by referring HS-4220 & it works as expected. Please refer below video which covers up to nominal run. HS4220.mp4 boxbeam1.tpl boxbeam1_0000.rad boxbeam1_0001.rad
  22. This seems to happen if function response (DRESP2) is not referenced in either the objective or constraints. If used, error message does not appear.
  23. I suspect this issue is related to naming. Please refer to similar query . If the above solution doesn't works, then please share the required files here.
  24. I was hoping that you could clarify some points.Can you confirm whether I should be able to execute a Hyperstudy analysis with RADIOSS? If it is the case I would be grateful for some tips as I cannot progress beyond a licence error. RADIOSS runs fine from the Hypermesh session.I get RADIOSS to start but it bangs out with a licence error... from task_exe_stdout.txt .. STARTER RUNNING ON 4 THREADS .. CONTROL VARIABLES *** Radflex Error : 200 - Back to checkout*** from JOB.out LICENSE CHECK ERROR -------------------- ERROR : License check failed ! "Radioss" feature not found on license server! Check your License server settings Many thanks Mike
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